Beastie Boys rapper MCA found dead

Beastie Boys star, Adam Yauch aka , MCA, was found dead today, at the age of 47.

MCA, co-founded the rap group with Mike D, and Ad Rock in 1979, had been battling cancer since 2009. There is no official word yet on whether his death was as a result of his cancer. Adam was also forced to miss the groups introduction into the Rock and Roll Hall of Fame this April, due to a decline in health.

In addition to his musical career, Adam was heavily involved in the movement to free Tibet. He even co-organized the Tibetan Freedom Concerts of the late Nineties.